Eric Bangeman: As an early invitee, he was able to register "ryan.coleman." Another later invitee named Ryan Coleman found that address taken, so he settled for the username "ryancoleman." So far so good. Then Ryan the first started getting the e-mail of Ryan the second.
http://arstechnica.com/news.ars/post/20060120-6022.html
Randy: Ooop! It appears Gmail has had a big hole for an even longer time.